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    实时频谱分析仪中CCDF测量功能的实现

    2007-03-16 《中国测试技术》杂志社028-84404872

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    张??瓅,?秦开宇
    (电子科技大学,四川?成都?610054)
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    摘??要:实时频谱分析仪可以对通信信号进行实时测试,符合现代通信分析仪的发展趋势。CCDF测量是实时频谱分析仪的关键技术之一,对于测量多载波信号非常有用。它普遍应用在2G和3G无线信号测量上。本文介绍了实时频谱分析仪的总体框架,重点阐述了CCDF测量功能的原理和处理流程。并以OFDM系统(正交频分复用)为应用背景验证了这种算法的有效性。
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    关键词:CCDF;OFDM;实时频谱分析仪;PAPR;多载波信号
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    中图分类号:TM935.21????文献标识码:A????文章编号:1672-4984(2007)01-0040-03
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    The?implement?of?CCDF?in?real-time?spectrum?analyzer
    ZHANG?Li,?QIN?Kai-yu
    (University?of?Electronic?Science?and?Technology,Chengdu?610054,China)
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    Abstract:Real-time?spectrum?analyzer?can?real-timely?measure?the?communication?signals.?CCDF,?which?can?measure?multi-carrier?signals?very?effectively,?is?one?of?the?important?technologies?of?real-time?spectrum?analyzer.?What?s?more,?it?is?widely?applied?to?the?wireless?signal?measurement?in?2G?and?3G.?This?paper?introduced?the?main?software?frame?of?real-time?spectrum?analyzer,?and?it?focuses?on?the?principle?and?processing?flow?of?CCDF.?The?computer?simulation,which?bases?on?the?background?of?OFDM,?demonstrates?the?effectivity?of?CCDF.
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    Key?words:CCDF;OFDM;Real-time?spectrum?analyzer;PAPR;Multi-carrier?signals


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